<template>
	<view :style="warpCss">
		<view :style="maskLayer"></view>
		<view class="diy-rich-text relative">
			<view v-if="diyComponent.html && diyComponent.html != '<p><br></p>'">
				<u-parse :content="diyComponent.html" :tagStyle="{img: 'vertical-align: top;'}"></u-parse>
			</view>
			<template v-else>
				<view>点此编辑『富文本』内容 ——&gt;</view>
				<view>
					<text>你可以对文字进行</text>
					<text>、</text>
					<text class="font-bold">加粗</text>
					<text>、</text>
					<text class="italic">斜体</text>
					<text>、</text>
					<text class="underline">下划线</text>
					<text>、</text>
					<text class="line-through">删除线</text>
					<text>、文字</text>
					<text style="color: rgb(0, 176, 240);">颜色</text>
					<text>、</text>
					<text style="background-color: rgb(255, 192, 0); color: rgb(255, 255, 255);">背景色</text>
					<text>、以及字号</text>
					<text class="text-lg">大</text>
					<text class="text-sm">小</text>
					<text class="pl-[10rpx]">等简单排版操作。</text>
				</view>
				<view>也可在这里插入图片、并对图片加上超级链接，方便用户点击。</view>
			</template>
		</view>
	</view>
</template>

<script setup lang="ts">
	// 富文本组件
    import { ref,computed, watch, onMounted, nextTick,getCurrentInstance } from 'vue';
	import useDiyStore from '@/app/stores/diy';
    import { img } from '@/utils/common';

	const props = defineProps(['component', 'index', 'pullDownRefreshCount']);

	const diyStore = useDiyStore();

	const diyComponent = computed(() => {
		if (diyStore.mode == 'decorate') {
			return diyStore.value[props.index];
		} else {
			return props.component;
		}
	})

	const warpCss = computed(() => {
		var style = '';
        style += 'position:relative;';
        if(diyComponent.value.componentStartBgColor) {
            if (diyComponent.value.componentStartBgColor && diyComponent.value.componentEndBgColor) style += `background:linear-gradient(${diyComponent.value.componentGradientAngle},${diyComponent.value.componentStartBgColor},${diyComponent.value.componentEndBgColor});`;
            else style += 'background-color:' + diyComponent.value.componentStartBgColor + ';';
        }

        if(diyComponent.value.componentBgUrl) {
            style += `background-image:url('${ img(diyComponent.value.componentBgUrl) }');`;
            style += 'background-size: cover;background-repeat: no-repeat;';
        }

        if (diyComponent.value.topRounded) style += 'border-top-left-radius:' + diyComponent.value.topRounded * 2 + 'rpx;';
        if (diyComponent.value.topRounded) style += 'border-top-right-radius:' + diyComponent.value.topRounded * 2 + 'rpx;';
        if (diyComponent.value.bottomRounded) style += 'border-bottom-left-radius:' + diyComponent.value.bottomRounded * 2 + 'rpx;';
        if (diyComponent.value.bottomRounded) style += 'border-bottom-right-radius:' + diyComponent.value.bottomRounded * 2 + 'rpx;';
        return style;
	})

    // 背景图加遮罩层
    const maskLayer = computed(()=>{
        var style = '';
        if(diyComponent.value.componentBgUrl) {
            style += 'position:absolute;top:0;width:100%;';
            style += `background: rgba(0,0,0,${diyComponent.value.componentBgAlpha / 10});`;
            style += `height:${height.value}px;`;

            if (diyComponent.value.topRounded) style += 'border-top-left-radius:' + diyComponent.value.topRounded * 2 + 'rpx;';
            if (diyComponent.value.topRounded) style += 'border-top-right-radius:' + diyComponent.value.topRounded * 2 + 'rpx;';
            if (diyComponent.value.bottomRounded) style += 'border-bottom-left-radius:' + diyComponent.value.bottomRounded * 2 + 'rpx;';
            if (diyComponent.value.bottomRounded) style += 'border-bottom-right-radius:' + diyComponent.value.bottomRounded * 2 + 'rpx;';
        }

        return style;
    });

	watch(
		() => props.pullDownRefreshCount,
		(newValue, oldValue) => {
			// 处理下拉刷新业务
		}
	)

    onMounted(() => {
        refresh();
        // 装修模式下刷新
        if (diyStore.mode == 'decorate') {
            watch(
                () => diyComponent.value,
                (newValue, oldValue) => {
                    if (newValue && newValue.componentName == 'RichText') {
                        refresh();
                    }
                }
            )
        }
    });

    const instance = getCurrentInstance();
    const height = ref(0)

    const refresh = ()=> {
        nextTick(() => {
            const query = uni.createSelectorQuery().in(instance);
            query.select('.diy-rich-text').boundingClientRect((data: any) => {
                height.value = data.height;
            }).exec();
        })
    }
</script>

<style></style>
